[Watchdog] changed format;
[build] added pthreads library to cmakelists.txt;
[testing] added test program for watchdog;
[Watchdog] added help; added restart with kill -12; added restartd crshed option;
Merge branch 'feature/watchdog' of github.com:webvariants/susi into feature/watchdog
[HttpServerComponent] added config params [threads,backlog];
Merge branch 'feature/core' of github.com:webvariants/susi into feature/core

Conflicts:
	Core/src/headers/webstack/HttpServerComponent.h
	Core/src/sources/world/system_setup.cpp
[logging] added messages for component startup and teardown;
Merge branch 'feature/core' of git@github.com:webvariants/susi.git into
feature/core

Conflicts:
	Core/src/headers/webstack/HttpServerComponent.h
Merge branch 'feature/core' into experimental
Merge branch 'feature/watchdog' into experimental